linux-kernel - Re: [PATCH 01/10] block: move existing elevator ops to union

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Date:   Fri, 13 Jan 2017 08:00:09 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        osandov@...ndov.com, bart.vanassche@...disk.com
Subject: Re: [PATCH 01/10] block: move existing elevator ops to union

On Fri, Jan 13 2017, Christoph Hellwig wrote:
> On Wed, Jan 11, 2017 at 02:39:54PM -0700, Jens Axboe wrote:
> > Prep patch for adding MQ ops as well, since doing anon unions with
> > named initializers doesn't work on older compilers.
> 
> My gut feeling tells me MQ schedulers shouldn't share elevator_type.
> I'll play around a bit with the code later to see if my gut was right.

It's crazy to re-invent a new framework just for MQ schedulers, imho. So
you're going to have to come up with something better than a gut
feeling.

-- 
Jens Axboe